Roll-guard for rough ing- iviach i nes



(No Model.)

E. A. BLAKE.

ROLL GUARD FOR ROUGHING MACHINES. N0.v324,806. Patented Aug. 26, 1885.

WITNESSES INVENTOR @WWM. 7

ATTORNEY U ITED STaTTs PATENT Urrrca EDlVARD A. BLAKE, OF CHICAGO,ILLINOIS.

ROLL-GUARD FOR ROUGHING=IVIACHINES.

SPECIFICATION forming part of Letters Patent No. 324,806, dated August25, 1885.

Application filed March 7, 1885. (No model.)

To aZZ whom it may concern:

Be it known that I, EDWARD A. BLAKE, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Attachments for Roughing- Machines; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification;

The object of my invention is to provide guards for the feed-rollers ofroughing-machines which effectually prevent the shavings from passingunder the roller with the electrotype or stereotype plate, therebyinjuring the same.

In the drawings, Figure 1 is a plan view of the rollers of aronghingmachine, showing the manner of connecting my invention there to.Fig. 2 is a perspective view of the guard.

In the drawings, A A represent the feed rollers arranged transverselyover the bedplate parallel to each other and journaled in the heads 13of i the vertically-reciprocating rods. The chisel reciprocateslongitudinally back and forth between the rollers, as indicated by a andthe arrow y indicates the direction of the bed'plate while the machineis at work.

In order to prevent the shavings and particles of metal from gettingunder the roller opposed to the motion of the bed after the path of thechisel is passed, I surround said roller, preferably about two-thirds ofits circumfen ence, with a guard. This guard G is made of sheet metal,and is provided with the arms I) 6, extending from one end, and theextension 0, extending from the other. These arms I) I) extend parallelto each other, and are separated a distance corresponding to thediameter of the barrel of the screw D, which projects from the innervertical surface of the head B.

In the extension 0, in alignment and 011 the same vertical plane as thespace between the arms I) at the other end of the guard, is an eye, (Z,the circular opening at the end of which is of a diameter correspondingto the head of the screw E, projecting from the head B, in a positioncorresponding to that of screw D. The

elongated opening extending horizontally from the circular opening ofthe eye corresponds in width to the diameter of the barrel of the screwE.

The distance from the screw D to screw E corresponds to the distancefrom the circular opening of the eye (Z inone end of the guard to theextremity of the arms 6, extending from the other end of said guard.Thus, to secure the guard in position, it is placed so that the head ofscrew E passes through the circular opening of eye (Z, and theextremities of arms 11 will strike or bear against the barrel of screwD. The guard is then moved longitudinally in the direction of screwD, sothat the barrels of screws D and E will occupy the space be tween armsI) b and the elongated opening of eye (Z, respectively, the heads ofsaid screws preventing the removal of the guard laterally.

In order to lock the said guard O in position, I pivot at or near itscenter of length, in or near the extremity of the extension 0, a dog, G.This dog G has a recess in its under edge, so that as the dog isoscillated it will pass over the head or barrel of screw E, and thusprevent any longitudinal motion of guard (J.

If desired, the elongated portion of the eye (Z may have at itsextremity a right-angular turn to it. In this event the eye d is placedon a lower plane, so that when said guard O is moved longitudinally itwill drop when the angular turn of the elongated portion of eye dreaches the screw E, and its lower edge be parallel and equidistant fromthe upper surface of the bedplate.

Other means than those hereinbefore described may be adopted to securethe guard in position without departing from the spirit of my invention,which is the protection of the feed-rollers of a roughing-machine, sothat particles and shavings of metal cannot get un der them.

The inner vertical part of this guard 0 passes vertically downward untilits lower edge is 011 the same horizontal plane as the under surface ofthe roller. This construction is resorted to to brush 01f the particlesof metal left on the work from the chisel, so that the plate or workbeing planed will not be injured in its passage under said rollers.Instead, however, of the said guard extending down to the same plane asthe under surface of the rollers, it may fall short of it, and a brushor rubber apron extend from the said lower edge, which will perform thesame function.

What I claim as new, and desire to secure by Letters Patent, is

1. In a roughing-machine, the combination, with thebed having alongitudinal motion and the feed-rollers placed transversely over saidbed,of the guard O,protecting said rollers from dirt and particles ofmetal.

2. In a roughing machine, a guard, 0, adapted to partly surround thefeed-rollers, and having its inner side contiguous to the path of thechisel vertical and extending downward to the same horizontal plane asunder surface of said rollers.

3. In a roughing machine, a guard, 0, adapted to protect the feedrollers, as set forth,

having arms b Z) extending from one end thereof, and having anextension, 0, extending from the opposite end, which is provided withthe eye (I, in combination with the said feed-rollers, their bearings,and the screws D and E.

4. The combination,in a roughing-machine, with the feed rollers,theirbearings,and screws D and E, projecting laterally therefrom, of theguard 0, having arms I) b and extension 0, having an eye, (I, and thedog G, fulerumed to said extension and having a recess in its underedge, substantially as set forth.

In testimony that I claim the foregoing as my own I hereunto affix mysignature in presence of two witnesses.

EDWARD A. BLAKE.

Witnesses:

JAMES H. CoYNE, FRANK D. THOMASON.

